Task 1.4 Household Travel Survey Processing, Expansion and Bias Correction

Task 1

Inputs

Household travel survey data file and coding specification.
Base year land use data (typically census households by type by zone).
Minimum Information Content (MIC) Specification.

Processing

Task 1.4 sub-tasks:
  1. Specify and obtain population census data required for expansion purposes (this seems to be the most common source of population estimates to which household surveys are expanded)
  2. Implement common trip purpose codes
  3. Deal with MIC issues
  4. Link trip stages to form complete trips
  5. Calculate expansion factors and apply correction factors to eliminate identified sampling biases
  6. Calculate annualisation factors, if required.

Outputs

Trip-linked, expanded household travel survey data file.
Technical Note.